Make child not inherit parent's transforms

Hi, it's my first post here. I was having fun with UDK until Unity's simplicity called me back.
Anyhow, I'm wondering if there's a clever way to make a child not inherit its parent's movement/rotation. I need this because I'm attempting to simplify networking later for me by attaching the spells that are cast to the player that cast them. The problem with that is that fireballs now rotate and move with the player.
And that just looks weird.
So is there any way to change this?
Since the fireballs are always moving, I can't just fix them in one spot.

 

Children by definition inherit the parent's movement/rotation, otherwise they wouldn't be children. Maybe you could make both the player and the spells children of an empty game object that doesn't move.

--Eric

 

That's true I suppose. But with the message broadcasting system it seems more fitting to have the option of disabling the inheritance.
Either way, adding another parent to the player worked nicely. Thanks

 

There are two classic ways to do this in 3D.


1) Calculate everything using the parent's parent space. Children only follow parents because they are defined in their local space. If you just calculate using another space the object will behave is if it has a different parent.


2) Negate everything the parent does. In essence, do the opposite. Undo it.

 

Necrobump:
For dynamic scene management having option to turn off inheritance for:

Rotation and/or Translation and/or Scale

Would be super handy.

For example worldspace helper objects associated with some game object; you want them to get destroyed when you destroy the main object, otherwise you gotta remember to do it yourself.

Also you can keep whole scene heirachy cleaner and see what helper objects are associated with what main objects.

I used the option in Shiva3D lots and really miss it here.

Currently writing custom AI locomotion for bots, want to be able to have various worldspace marker objects per bot to drop down and not worry about cleaning them up when bot gets destroyed.

 

Hi there! I figure out this solution

Just set this script to your child (It works also in Edit Mode so that you can set up the scale you need.

At the **FixeScale** set up the size of your child you need and at the **parent** set your parent model.

Code (CSharp):

1.  
2.  
3.     using System.Collections;
4.     using System.Collections.Generic;
5.     using UnityEngine;
6.    
7.     [ExecuteInEditMode]
8.     public class FixedScale : MonoBehaviour {
9.    
10.      public float FixeScale =1 ;
11.         public GameObject parent;
12.        
13.         // Update is called once per frame
14.         void Update () {
15.             transform.localScale = new Vector3 (FixeScale/parent.transform.localScale.x,FixeScale/parent.transform.localScale.y,FixeScale/parent.transform.localScale.z);
16.    
17.                 }
18.             }
19.  
20.  
21.  
22.  

 

Hi Rispat

What would the script look like if I would also like the child to ignore the parents rotation?

So I want only the child's position to follow the parent.

Thanks a lot, in advance!

 

I think it is easy to set a fixed rotation in the childs using transform.rotation = Quaternion.Euler(rotation you need for the childs) in the void update;

example:
void Update()
{
transform.rotation = Quaternion.Euler(-4.5f, 180f, 0f);
}